Beverage dispensing apparatus



July 24,. 1956 D. E. LAWSON ETAL 2,755,979

BEVERAGE DISPENSING APPARATUS Filed Dec. 21, 1951 3 Sheets-Sheet 1 V 574 i AZ? //8 INVENTORS. DAVID E. LA wsmv run/ms &. cmnzmo LE 0 URBAN.

July 24, 1956 D. E. LAWSON ETAL 2,755,979

BEVERAGE DISPENSING APPARATUS Filed Dec. 21, 1951 S Sheets-Sheet 2 8- 4INVENTORS.

DAV! E. LAWSON, THOMAS 6. C210 RAND LEO u BAN.

July 24, 1956 D. E. LAWSON L BEVERAGE DISPENSING APPARATUS 3Sheets-Sheet 3 Filed Dec. 21, 1951 IWD Nmm

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55. I m WW MTI WQ United States Patent BEVERAGE DISPENSING APPARATUSDavid E. Lawson, Leo Urban and Thomas G. Crider,

Cleveland, Ohio, assignors to Hupp Corporation, Cleveland, Ohio, acorporation of Virginia Application December 21, 1951, Serial No.262,762

9 Claims. (Cl. 22646.4)

This invention relates to refrigerating apparatus and more particularlyto a self-contained motorless machine for use in dispensing refrigeratedcarbonated drinks.

There are many places where a coin operated drink vending machine couldbe used to great advantage but wherein there are no provisions forsupplying either water or electricity for operating a conventional drinkvending machine. Thus, golf clubs find it profitable to sell cold drinksout on the golf course between the ninth and tenth holes where there areno water or electrical connections. Likewise, there is a big demand forportable drink vending machines that may be used at such places aspicnics, carnivals, athletic events, on shipboard, et cetera. Theconventional drink vending machines are unsuitable for such use, as theyrequire water connections and 110 volt, 60 cycle current for theiroperation. Furthermore, there are many places, especially in foreigncountries, where the supply of electrical energy is not of standardvoltage or frequency, with the result that the ordinary drink dispensingmachines cannot be used without being provided with special motors andthe like. It is an object of this invention to provide a self-containedmotorless machine which may be sold for use in foreign countries and inlocalities where one cannot connect the equipment to a standard sourceof power or a source of water.

More particularly, it is an object of this invention to provide a drinkdispensing machine in which two 6 volt dry cell battery units are usedfor controlling the timing equipment.

It is another object of this invention to provide an improvedarrangement for cooling, measuring and dispensing the ingredients.forming the finished drink.

Another object of this invention is to provide a drink vending machinein which an improved syrup metering device is located ahead of thecooling coil, so that the syrup is not required to pass through themetering device after it has been cooled.

It is a further object of this invention to provide an improved timingarrangement for controlling the flow of carbonated water and syrup intoa cup or the like.

Another object of this invention is to provide an improved arrangementfor dispensing cups in a drink vending machine.

Another object of this invention is to provide a drink vending machinein which an improved liquid feed arrangement is provided in which thepressure of the carbon dioxide gas is used for forcing the carbonatedwater and the syrup into a drinking cup in a predetermined sequence.

A further object of this invention is to provide a drink vending machinein which an improved arrangement of parts is provided whereby the supplyof syrup, water, ice, and cups may be replenished with ease.

Other objects and advantages reside in the construction of parts, thecombination thereof and the mode of operation, as will become moreapparent from the following description.

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In the drawings:

Figure 1 is an elevational view, with parts broken away, showingsomewhat diagrammatically the arrangement of the parts within the outercabinet;

Figure 2 is a diagrammatic view showing the basic controls for thesystem;

Figure 3 is a sectional view showing the construction of the syrupmetering cylinder;

Figure 4 is a side elevational view showing the construction andarrangement of the manual operator and the timer mechanism;

Figure 5 is a front elevational view showing the cup dispensingmechanism and its relationship to the timer mechanism; and

Figure 6 is a horizontal sectional view taken on line 66'o-f Figure 5.

Referring now to the drawings wherein there is shown a preferredembodiment of the invention, reference numeral 10 generally designatesan outer housing or casing which serves to enclose and support all ofthe ingredients and mechanism necessary for serving a cold carbonatedbeverage. Since the device is intended to be entirely selfcontained andto be used in locations where neither water nor electric connections areavailable, the ingredients used for dispensing the drinks are chilled bymeans of ice which is adapted to be placed in an ice receptacle 12mounted in the upper portion of the casing 10, as shown in Figure 1.This ice receptacle is rerrrovably held in place within the casing bymeans of downwardly projecting flanges 14 which engage within a channel16 formed by spot welding the sheet metal strip 18 to the inside wallsof the casing 10. The ice receptacle 12 is spaced from the front wall ofthe casing so as to provide room for a pair of cup dispensers and theirassociated operating mechanism which will be described more fullyhereinafter.

A removable drain tank 22 is provided in the bottom portion of thecasing underneath a drain spout 21 which conveys any water or syrupwhich may be spilled onto the cup shelf 23 carried by the front wall ofthe cabinet. A shelf 24 is provided within the casing for supporting asyrup can or receptacle 26 from which flavoring material is adapted tobe supplied for the drinks to be dispensed. The casing 10 also houses apair of carbonated water tanks or receptacles 28 and a C02 drum 30. Drycell units 32, commonly referred to as hot-shot batteries, are alsoprovided within the casing for supplying electrical energy for operatinga pair of solenoid valves 34 and 36 which control the flow of syrup andcarbonated water into the drinking cup 48 which is automaticallydelivered onto the cup shelf just before the valves are opened, as willbe explained more fully hereinafter.

Referring now to Figure 2 of the drawings wherein there is schematicallyshown the various fluid flow circuits, it will be noted that the CO2drum 30 supplies CO2 to conventional stone CO2 ditfusers 38 locatedadjacent the bottoms of the water receptacles 28, so as to maintain thewater in these receptacles properly carbonated. A relatively highpressure regulator valve 40 is provided in the line 29 leading from thedrum 30 to the diffusers 38 whereby the pressure within the waterreceptacles is maintained at a predetermined relatively high value for apurpose to be explained more fully hereinafter. CO2 gas is also suppliedto the syrup receptacle 26 through the line 42 in which a relatively lowpressure regulator 44 is provided. This regulator 44 maaintains apredetermined gas pressure within the syrup receptacle sufiicient tocause the syrup in the receptacle to flow out through conduit 43 to ametering cylinder 46 and finally into the drinking cup 48.

The metering cylinder 46 floatingly supports a piston 50 (see Figures 2and 3). A spring 52 biases the piston 50 into the down position, asviewed in Figure 2, for a purpose to be explained more fullyhereinafter. The stroke of the piston 50 may be adjusted by the stop 54which is threadedly secured to the one end of the metering cylinder 46,so as to make it possible to adjust the amount of syrup dispensed intoeach cup. As best shown in Figure 3, the adjustable stop serves toengage a pistonlike element 56 which in effect serves as an adjustableend wall for the metering cylinder. By screwing the adjustable stop 54inwardly, the element 56 is forced to move against the pressure of thespring 52 towards the floating piston 50. When the adjustable stop isscrewed outwardly, the spring 52 causes the element 56 to follow up themovement of the stop, with the result that it is not necessary todirectly attach the element 56 to the stop 54.. Suitable gaskets 58 areprovided, as best shown in Figure 3, for preventing leakage of syruppast the piston and stop.

Syrup under pressure is free to flow from the syrup receptacle 26 intothe lower end of the metering cylinder at all times, whereas the upperend of the syrup cylinder is only connected to the syrup supply when thethreeway valve 36 is moved into a position in which it connects thesyrup supply to the upper end of the metering cylinder, in which casethe combined pressure of the syrup plus the force of the spring 52serves to force the floating piston 50 downwardly to the extreme lowerend of the metering cylinder. When the three-way valve is energized andthereby shifted into the position in which the syrup from the upper endof the cylinder is free to flow toward the syrup outlet 53, the upperend of the metering cylinder is no longer subjected to the relativelyhigh pressure corresponding to the pressure in the syrup receptacle butis subjected to a lower pressure determined by the pressure required toopen the check valve 62 and consequently the relatively high syruppressure acting against the lower end of the piston serves to push thepiston upwardly and thereby force the syrup to flow out through thethree-way valve into the syrup cooling coil 60 and eventually into thecup 48 through the check valve 62. The check valve 62 is set to open ata pressure sutficiently less than that of the syrup pressure within thesyrup metering cylinder, so as to cause the syrup to be dispensed whenthe valve 36 is energized.

The syrup cooling coil 60 is arranged in the ice receptacle 12 so as tocool the syrup after it leaves the syrup metering cylinder andimmediately before being dispensed. By virtue of this arrangement, therelatively warm and free flowing syrup only is required to be handled bythe metering cylinder and the solenoid valve 36.

By providing a check valve at the outlet of the syrup cooling coil, thesyrup is maintained under pressure at all times until it is dispensed,even though the syrup control valve 36 is mounted ahead of the syrupcooling coil 60.

The carbonated water leaves the carbonators or water receptacles 28through the line 64 which leads to a water cooling coil 66 also disposedwithin the ice receptacle 12. The solenoid valve 34 controls the flow ofcarbonated water into the water cooling coil 66. A check valve 68 isprovided at the outlet of the water cooling coil for controlling thedischarge of carbonated water through the nozzle 51 into the cup 48. Thecheck valve 68 is set to open at a pressure slightly below the pressureof the carbonated water in the line 64. By virtue of the abovearrangement, it is possible to place the main water control solenoidvalve 34 ahead of the water cooling coil and still maintain thecarbonated water in the water cooling coil under pressure.

The solenoid valves 34 and 36 are connected into the electric circuit asshown in Figure 2 and are adapted to be energized from the dry cellbatteries 32. A pairof cam operated switches 70 and 72 are provided asshown in Figure 2 and are under control of a clock operated cam 74 whichserves to operate the valves 34 and 36 in a predetermined sequence. Asexplained more fully hereinafter, the cam 74 first serves to close theswitch 70, so as to open the water valve 34 for a period ofapproximately seven seconds. During the last three seconds of thedispensing operation, the switch 72 is also closed, so as to manipulatethe syrup dispensing valve 36 whereby a predetermined quantity of syrupis supplied to the cup 48. The pressure maintained within the syrupreceptacle 26 is sufficient to cause the piston 50 to move from itslowermost position to its uppermost position during the three secondsinterval, with the result that a metered amount of syrup is allowed toflow into the cup before the three-way valve shuts off the flow of syrupto the syrup cooling coil. It is apparent from the above that the amountof water dispensed is determined by the length of time that the valve 34remains open and the water pressure tending to force the water out,whereas the amount of syrup dispensed is determined solely by theadjustment of the stop 54 in the syrup metering cylinder. It is obvious,therefore, that the ratio of syrup to water may be adjusted from time totime without redesigning the cam 74 or substituting a new cam.

Two cup dispensing units are supported on a bracket 82, which in turn issupported on the front door 84 of the casing. Each of the cup dispensingunits is of the type which includes an oscillating lever 86 fordispensing cups therefrom. Inasmuch as cup dispensing units of this typeare old and well known in the art, the details of the cup dispensingunits have not been shown. Each of the oscillating levers 86 isconnected to a cam follower 88 by means of a lever 90. The cam followers88 are pivotally supported on pins 92. Each of the cam followers 88 isbiased into engagement with the cam actuator 94 by means of a spring 96which is arranged as shown. The cup dispensing cam 94 is rotatablysupported on the operating shaft 98 which supports a ratchet device 100which serves to drive the cam 94 when the shaft 98 is oscillated throughan angle of 90 degrees. The shaft 98 is adapted to be manually driven bythe handle 102. For purposes of illustrating the invention, we haveshown a device in which a conventional coin operated clutch device 104is interposed between the handle 102 and the shaft 98, so it isnecessary to insert a coin into the device 104 in order to key thehandle 102 to the shaft 98. Inasmuch as coin operated devices of thistype are Well known in the art and inasmuch as the details ofconstruction there of may be varied without departing from the spirit ofthe invention, it is not considered necessary to encumber thisdisclosure with a detailed showing and description of the coin operateddevice.

Upon insertion of the coin, rotation of the handle through 90 causesrotation of the shaft 98 through 90, with the result that the cupdispensing cam 94 rotates through a 90 arc. In order to dispense a cupfrom either one of the cup dispensing mechanisms, it is necessary,however, to rotate the cam 94 through 180 so that the handle 102 must beoscillated through 90 twice in order to operate either cup dispenser. Itwill be noted that the arrangement is such that the cups will bedispensed alternately first from the one cup dispenser and then from theother. In other words, when the cam 94 serves to dispense a cup from oneof the dispensers, it will also be cocking the other cup dispenser, sothat upon the next operation of the handle, this other cup dispenserwill be ready to drop a cup into one of the chutes 106. As best shown inFigure 1, the cup dispensers are mounted on opposite sides of the coinchute 104 and a pair of cup conveying chutes 106 is arranged to directthe cups onto the shelf 23.

Rotation of the shaft 98 also operates the timer actuator lever 110through the chain 112 which has its one end connected to a lever 114,which in turn is keyed to the shaft 98. The timer 113 is a conventionaltimer which serves to operate the cam 74, which in turn operates theswitches 70 and 72. The cam 74 is provided with a valley or low spot 116which is incapable of moving the switch actuator 118 into switch closingposition. A first raised portion 120 is provided on the cam which servesto hold the switch 70 closed throughout 160 of travel of the cam 74. Asecond raised portion 122 serves to hold both the switch 70 and theswitch 72 in the closed position throughout approximately 160 and at theend of 320 both switches are opened as a result of the switch actuator118 dropping into the valley 116. Thus, it follows that the waterdispensing solenoid valve 34, which is controlled by the switch 70, willremain open for a period of approximately seven minutes, which is thetime required for the timer to rotate the cam 74 through 320, and thesyrup dispensing valve 36 will be set to dispense syrup during the lasthalf of the dispensing cycle, with the result that a minimum amount ofrelease of carbon dioxide from the water will take place and yet thesyrup will be properly mixed with the water.

In order not to needlessly complicate the disclosure, the usual coinreturn mechanism and other safety features which come into operation,such as when the supply of cups is exhausted, will not be described. Anywell known features for serving this purpose may be used withoutdeparting from the spirit of the invention claimed herein.

Although the preferred embodiment of the device has been described, itwill be understood that within the purview of this invention variouschanges may be made in the form, details, proportion and arrangement ofparts, the combination thereof and mode of operation, which generallystated consist in a device capable of carrying out the objects setforth, as disclosed and defined in the appended claims.

Having thus described our invention, we claim:

1. In a self-contained carbonated beverage dispensing apparatus, acasing, a pressure tank within said casing for supplying carbon dioxideunder pressure, a syrup receptacle within said casing, conduit means forsupplying CO2 under pressure from said tank to said syrup receptacle, apressure regulating means in said conduit means so as to maintain thesyrup in said receptacle at a predetermined pressure, carbonator meansin said casing including a water receptacle, means for supplying CO2from said tank to the water in said water receptacle at a relativelyhigh pressure, a syrup cooling coil in said casing, a water cooling coilin said casing, means for supplying carbonated water from said waterreceptacle to said water cooling coil including a solenoid operatedvalve located at the inlet to said water cooling coil, a carbonatedwater dispensing nozzle, means including a check valve for connectingsaid nozzle to the outlet of said water cooling coil, a syrup dispensingnozzle, a syrup metering cylinder, a piston movable in said cylinder,spring means for biasing said piston in the one direction withinsaidcylinder, means forming a direct connection between said syrupreceptacle and a first end of said metering cylinder and including asolenoid operated three-way valve, means for selectively connecting theinlet of said syrup cooling coil to either end of said metering cylinderand for connecting the second end of said cylinder to said syrupreceptacle when the first end of said cylinder is connected to saidsyrup cooling coil, dry cell battery means within said casing, circuitmeans for connecting said solenoid valves to said dry cell batterymeans, and manually actuated timing means for controlling theenergization of said solenoid valves.

2. In a self-contained carbonated beverage dispensing apparatus, acasing, a pressure tank within said casing for supplying carbon dioxideunder pressure, a syrup receptacle within said casing, conduit means forsupplying CO2 under pressure from said tank to said syrup receptacle, apressure regulating means in said conduit means so as to maintain thesyrup in said receptacle at a predetermined pressure, carbonator meansin said casing including a wa. ter receptacle, means for supplying CO2from said tank to the water in said water receptacle at a relativelyhigh pressure, a sy'rup cooling coil in said casing, a water coolingcoil in said casing, means for supplying carbonated water from saidwater receptacle to said water cooling coil including a solenoidoperated valve located at the inlet to said water cooling coil, acarbonated water dispensing nozzle, means including a check valve forconnecting said nozzle to the outlet of said water cooling coil, a syrupdispensing nozzle, a syrup metering cylinder, a piston movable in saidcylinder, spring means for biasing said piston in the one directionwithin said cylinder, means forming a direct connection between saidsyrup receptacle and a first end of said metering cylinder and includinga solenoid operated three-way valve, means for selectively connectingthe inlet of said syrup cooling coil to either end of said meteringcylinder and for connecting the second end of said cylinder to saidsyrup receptacle when the first end of said cylinder is connected tosaid syrup cooling coil, dry cell battery means within said casing,circuit means for connecting said solenoid valves to said dry cellbattery means, and manually actuated timing means for controlling theenergization of said solenoid valves, said last named means serving tofirst open said first named solenoid valve for a predetermined timeinterval so as to dispense carbonated water into a cup and to thereafteroperate said three-way valve to dispense a measured quantity of syrupinto the cup.

3. In a self-contained carbonated beverage dispensing apparatus, acasing, a pressure tank within said casing for storing carbon dioxidegas under pressure, a syrup receptacle within said casing, conduit meansfor connecting said tank to said syrup receptacle, a pressure regulatingmeans in said conduit means so as to maintain syrup in said receptacleat a predetermined relatively low pressure, carbonator means in saidcasing including a water receptacle, means for supplying carbon dioxidefrom said tank to the water in said water receptacle at a relativelyhigh pressure, a syrup cooling coil in said casing, a water cooling coilin said casing, means for supplying carbonated water from said waterreceptacle to said water cooling coil including a solenoid operatedvalve, a carbonated water dispensing conduit, means for connecting saidconduit to said water cooling coil including a check valve whereby thecarbonated water in said water cooling coil is sealed therein when saidsolenoid valve and said check valve are both closed, a syrup meteringcylinder, a piston floatingly mounted in said cylinder, spring means forbiasing said piston in the one direction within said cylinder, meansforming an open connection between said syrup receptacle and a first endof said metering cylinder so as to oppose the force of said spring bythe force of syrup under pressure, means for selectively connecting saidsyrup receptacle to the second end of said metering cylinder or to saidsyrup cooling coil, said last named means comprising a solenoid operatedthree-way valve, a syrup dispensing conduit, means including a checkvalve for connecting said syrup dispensing conduit to the outlet of saidsyrup cooling coil, said check valve being so constructed and arrangedto remain closed at pressures be low the pressure in said syrupreceptacle, first switch means for controlling the operation of saidfirst solenoid operated valve, second switch means for controlling theoperation of said second solenoid operated valve, and means foroperating said first and second switch means in sequence.

4. In a self-contained carbonated beverage dispensing apparatus, acarbon dioxide drum, a syrup receptacle, means for supplying carbondioxide from said drum to said syrup receptacle at a relatively lowpressure so as to maintain the syrup in said receptacle at apredetermmed pressure, a water receptacle, means for supplying carbondioxide from said drum to said water receptacle at a relatively highpressure, a syrup cooling coil, a water cooling coil, means forsupplying water from said water receptacle to said water cooling coilincluding a solenoid operated valve,.means including a pressure operatedcheck 7 valve at the outlet of said water cooling coil for dispensingwater therefrom, a syrup metering cylinder, a piston movable in saidcylinder, spring means for biasing said piston in the one directionwithin said cylinder, means forming an open connection between saidsyrup receptacle and the one end of said metering cylinder, meansincluding a solenoid operated three-way valve for selectively connectingthe other end of said metering cylinder to said syrup receptacle or tosaid syrup cooling coil, a syrup dispensing conduit, means including apressure operated check valve at the outlet of said syrup cooling coilfor dispensing syrup therefrom, first switch means for controlling theoperation of said first solenoid operated valve, second switch means forcontrolling the operation of said second solenoid operated valve, andmeans for operating said first and second switch means in apredetermined sequence whereby the syrup is not dispensed until towardthe end of the water dispensing period.

5. In a self-contained drinl; dispensing machine, a syrup receptacle, acarbonator including a carbonated water receptacle, a syrup coolingcoil, a water cooling coil, a first solenoid operated valve forcontrolling the flow of water from said carbonator to said water coolingcoil, a second solenoid operated valve of the three-way type forcontrolling the flow of syrup from said syrup receptacle to said syrupcooling coil, timing means for controlling the energization of saidsolenoid operated valves, 21 syrup dispausing conduit connected to theoutlet of said syrup cooling coil, a carbonated water dispensing conduitconnected to the outlet of said water cooling coil, check valves in eachof said conduits, means for applying pressure to the syrup in said syrupreceptacle, means for limiting the quantity of syrup dispensed when saidsecond solenoid valve is opened, said last named means comprising acylinder, a piston operable Within said cylinder, a spring in a firstend of said cylinder for biasing said piston toward the other endthereof, said three-way valve including means for selectively connectingsaid first end of said cylinder to said syrup supply and thereafter tosaid syrup cooling coil, and means for continuously connecting thesecond end of said cylinder to said syrup supply.

6. in a self-contained drink dispensing machine, a syrup receptacle, acarbonated water receptacle, means for supplying CO2 gas under pressureto said receptacles, a syrup cooling coil, a water cooling coil, a firstvalve for controlling the flow of Water from said water receptacle tosaid water cooling coil, 21 second valve for controlling the fiow ofsyrup from said syrup receptacle to said syrup cooling coil, a syrupdispensing conduit connected to the outlet of said syrup cooling coil, acarbonated waterdispensing conduit connected to the outlet of said watercooling coil, check valves in each of said conduits arranged to open inresponse to opening of the respective valves for controlling the flowinto said cooling coils, and means for limiting the quantity of syrupadmitted to said syrup cooling coil by said second valve irrespective ofthe length of time said second valve remains open,

7. in a self-contained carbonated beverage dispensing apparatus, acasing, an ice receptacle removably supported within the upper portionof said casing, a C02 tank disposed in the lower portion of said casing,21 syrup receptacle within said casing beneath said ice receptacle,conduit means for supplying CO2 under pressure from said tank to saidsyrup receptacle so as to maintain the syrup therein under apredetermined pressure, carbonator means in said casing including acarbonated water receptacle, means for supplying CO2 from said tank tosaid carbonator means, a syrup cooling coil in thermal exchangerelationship to the ice in said ice receptacle, a Water cooling coil inthermal exchange relationship to the ice in said ice receptacle, meansfor supplying carbonated water from said carbonator means to said watercooling coil including a solenoid operated valve located at the inlet tosaid water cooling coil, a carbonated water dispensing nozzle.

means including a check valve for connecting the nozzle to the outlet ofsaid water cooling coil and for maintaining the carbonated water in saidcoil under pressure, said check valve being adapted to open so as toallow carbonated water to flow out from said water cooling coil inresponse to a predetermined increase in pressure of the carbonated waterin said Water cooling coil, :1 syrup dispensing nozzle, means forconveying syrup from said syrup receptacle to said syrup cooling coilincluding a syrup flow control valve, and a syrup metering means foradmitting a predetermined quantity of syrup from said syrup receptacleto said syrup conveying means each time said syrup flow control valve isopened.

8. In a self-contained drink dispensing machine, a syrup receptacle, acarbonator including a carbonated 'ater receptacle, a syrup coolingcoil, a water cooling coil, means including a first solenoid operatedvalve for supplying water from said carbonator to said water coolingcoil, means including a second solenoid operated valve for supplyingsyrup from said syrup receptacle to said syrup cooling coil, a first cupdispensing unit having a pivoted lever for operating the same, a secondcup dispensing unit having a pivoted lever for operating the same, a cupshelf, first chute means for conveying cups from said first cupdispensing unit to said shelf, second chute means for conveying cupsfrom said second cup dispensing unit to said shelf, a syrup dispensingconduit for con veying syrup from said syrup cooling coil to a cuplocated on said shelf, a carbonated water dispensing conduit forconveying carbonated water from said water cooling coil to a cup on saidshelf, a check valve in each of said conduits, a manual operator mountedfor oscillation through a given angle, timing means responsive tooscillation of said manual operator through said given angle forCOlltrolling the energization of said solenoid operated valves in apredetermined sequence with respect to each other, rotatable cam meansfor alternately operating said cup dispensing levers, and ratchet meansdrivingly connecting said manual operator to said cam means wherebyoscillation of said manual operator imparts rotation to said cam means.

9. In a self-contained drink dispensing machine, a syrup receptacle, acarbonator including a carbonated water receptacle, a syrup coolingcoil, a water cooling coil, means including a first solenoid operatedvalve for supplying water from said carbonator to said water coolingcoil, means including a second solenoid operated valve for supplyingsyrup from said syrup receptacle to said syrup cooling coil, a first cupdispensing unit having a pivoted lever for operating the same, a secondcup dispensing unit having a pivoted lever for operating the same, a cupshelf, first chute means for conveying cups from said first cupdispensing unit to said shelf, second chute means for conveying cupsfrom said second cup dispensing unit to said shelf, a syrup dispensingconduit for conveying syrup from said syrup cooling coil to a cuplocated on said shelf, a carbonated water dispensing conduit forconveying carbonated water from said water cooling coil to a cup on saidshelf, a check valve in each of: said conduits, a manual operatormounted for oscillation through a given angle, timing means responsiveto oscillation of said manual operator through said given angle forcontrolling the energization of said solenoid operated valves in apredetermined sequence, rotatable cam means for operating said cupdispensing levers, and ratchet means drivingly connecting said manualoperator to said cam means whereby oscillation of said manual operatorimparts rotation to said cam means, said cam means being so constructedand arranged as to operate said pivoted levers alternately whereby cupsare dispensed by said cup dispensing units in alternate order.

(References on following page) References Cited in the file of thispatent UNITED STATES PATENTS Moore Apr. 22, 1924 Christianson July 11,1939 Waite et a1. Sept. 16, 1947 10 Bowman Feb. 15, 1949 Burgess Apr.11, 1950 Waite Sept. 4, 1951 Arnett Jan. 22, 1952 Little Nov. 11, 1952

